Mathlib Map

Theorems · Theorem · general topology

Set.Countable.isPathConnected_compl_of_one_lt_rank

∀ {E : Type u_1} [inst : AddCommGroup E] [inst_1 : Module ℝ E] [inst_2 : TopologicalSpace E] [ContinuousAdd E]
  [ContinuousSMul ℝ E], 1 < Module.rank ℝ E → ∀ {s : Set E}, s.Countable → IsPathConnected sᶜ

In a real vector space of dimension > 1, the complement of any countable set is path connected.

Defined in
Mathlib.Analysis.Normed.Module.Connected
Cited by
2 results in Mathlib
Foundations
Depth 170 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
AddCommGroupModuleTopologicalSpaceContinuousAddContinuousSMul

Around this declaration

Dashed lines are statement dependencies; solid lines are citations in proofs.

Cites65

Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.

Cited by2

Results whose statement or proof uses this declaration.